The only thing one can quantify indisputably is which company makes the most profit by selling devices that include cameras. Phone cameras are the most abundant photographic device and ergo the most popular and preferred. Apple sells more than any other single firm, makes the most profit, and (despite a share price sag) has the greates market capitalization.

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What about Samsung making more profit and has larger marketshare with their Galaxy smartphones and tablets than Apple?--Cheers, Erik